Thousands of people have been wrongly told they are in danger of developing life-threatening heart diseases because of flaws in the way doctors routinely calculate the risk, according to a study of more than a million people published today. Current estimates of the number at risk of cardiovascular diseases are 1.5 million too high, the report says, suggesting the anti-cholesterol drugs statins are massively and needlessly over-prescribed, inflating the £2bn annual bill to the NHS. Join discussion...